I just came across a bluetooth thermocouple.
It is the WETS05 Wireless Thermocouple Temperature Sensor by Phoenix Sensors.
Is there any way to incorporate this with Hubitat?
I have been looking for a simple thermocouple solution to monitoring my wood stove for a long time.
Thanks for your consideration.
edit: I'm not even sure they'll sell one to me, an individual. Wrote them an email. Will keep looking. Sigh.
I found another! Perhaps more promising.
BlueDot Bluetooth grilling thermometer.
$80!
How about it? Possible to integrate with Hubitat?
Don't you want a type k thermocouple? I think an esp and a MAX6675 and you are in business.
I’ve heard 
. I can’t get over the psychological hump of actually doing it.
Some of these systems for high end BBQ smokers have k type probes and bluetooth. Not sure if you can just buy probe and transmitter but then there is a potential proprietary protocol over bluetooth to contend with... so might be a bit of a black hole...
What about just an interface and DS18B20 probe in proximity to the stove. Measure temp some fixed distance away (with some probe mounting scheme), an inch or two where the temp rise will be measurable and perhaps consistent enough to do as a proxy temp? Probe temp + temp rise offset = actual stove temp? That allows you very cheap and available probe/transmitter options. Not sure the precision you need...
Seems like that would do it.
There is a BTHome for ESPHome project that should speak the same language as the hub’s new Bluetooth integration.
You need a device that supports BTHome v2 to connect it to Hubitat.
Currently
Are you looking for a Bluetooth device that you can’t currently integrate with the hub?
I am looking for an easy way to get high temperature readings into Hubitat.
I haven't generated any interest over the past four years or so, so I'm not optimistic.
There are handfuls of reddit threads where Ha people have outlined using a thermocouple with esp. Forget Bluetooth. You can use esphome or mqtt etc.
Thermoworks makes the best probes in my opinion. They are ISO 17025 accredited for calibration (Means they have been third party verified to know how to calibrate and provide actual traceability beyond an ice bath and boiling water - something I have not seen many manufacturers of consumer grade products do - and I am in the calibration field.)
HOWEVER, the sampling rate on their transmitters is horrible. I returned mine because the lag was horrendous for real time monitoring. (Something like 5 minutes behind which can be a big deal if you are ramping up the temperature in a stove or oven)
While you are looking, I would never buy a transmitter with a built in TC probe that is not interchangeable. The probes do fail over time and get drift with age and heat cycles. Thermoworks makes EXCELLENT probes, if you can find a transmitter that allows interchangeable probes.
I use the Fireboard 2 pro with Thermoworks Type K High temp sensors for my grill. I have been very happy with that set up. It's over wifi, and the integration is cloud. But, it is not running 24/7 so might not be ideal for your use.
Will also say, I took system into my lab, and I have < 0.3 deg F error from 0-1200F. So, good for everything from low and slow to Brickoven pizza heat. I have only had to replace two probes, and that was due to the connection at the plug getting fatigued from removal/insertion. But, out of all the ones I have tried, theirs have the best stress relief on the cables of any of the consumer facing options I have used.
I do think the key is probably for me to search consumer grade grilling units, again. Although that WETS05 unit is intriguing.
So, that was what I was talking about when I mentioned not buying a transmitter sensor combo unit. The sensor appears to be soldered (hardwired) the the BLE transmitter. So, when the sensor goes bad (and it will at furnace temperatures), then you have to buy a whole new unit.
Even though the website claims 2.2 deg C, which is correct for the wire by itself, Their datasheet Specs claim a 0.25deg C accuracy for type K or J Thermocouples, which is counter to what the standards written specifically for thermocouples say:
Key Accuracy Factors & Standards
• Standard vs. Special Limits: Most industrial thermocouples use ANSI/ASTM
"Standard" (e.g., $2.2°C for J/K) or "Special Limits of Error" (e.g., +1.1°C for J/K).
• IEC Classes: IEC 60584-1 classifies accuracy: Class 1 (+1.5°C or 0.004|t|), Class 2 (
+2.5°C or 0.0075|t|), and Class 3.
Add to that, I have been in the calibration field servicing the very fields they claim to be producing parts for (since 1987). I have not heard of them until now.
Given their contradictory claims of accuracy alone, I would not use them for anything I actually cared enough to have a temperature gage for.
Add to that the fact that the unit is a complete unit with no way to replace the sensor, the lack of ANY quality standards mentioned on their site (not even ISO 9001), I personally would not get anything from them. Nobody is using these for aircraft engines if they are not compying with basic quality standards.
The Automotive industry requires measuring instruments to be calibrated by labs that are Accredited to ISO 17025 (Look up the requirements for IATF 16949 - which is the quality systems mandated for automotive suppliers). Those requirements far exceed the basic ISO 9001 quality sytem requirements. So again, their claims toward the automotive industry are also dubious.
If you can find a reader for a TC that you can integrate, that would be a better option so that you can get replaceable TC's (again, Thermoworks ones are durable and quite good - AND come with a reliable calibration)
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